An optical transceiver module includes an electro-optical transmission
assembly and an electro-optical receiving assembly both mounted on a
common printed circuit board and enclosed by a top shell and a bottom
shell of an electromagnetically shielding transceiver module. The housing
has optical connection openings and an electrical connection opening. The
serial optical signals of a first Bit-rate of several Gbit/s and more are
converted to serial electrical signals and are multiplexed to parallel
electrical signals at a lower second Bit-rate. Reducing the Bit-rate and
thus reducing the electromagnetic frequency reduces the risk of
electromagnetic interference on the printed circuit main-board. The
optical connection openings have a first and a second gasket for reducing
the electromagnetic radiation emerging out of the housing through the
optical connection openings. The electrical connection opening has a third
gasket for reducing the electromagnetic radiation emerging out of the
electrical connection opening.
